Step-by-step: a Labouchère line
Write 1-2-3-4, bet di two end, cross dem off wen yuh win, add di loss pon di end. Di cancellation system tru one line weh clear an one weh run weh.

A simulate Labouchère session at $5 a unit, target $50 fi evry line. Di fus line clear inna 8 spin fi exactly $50. Di second one run to a line a 16 numba an a $200 stake bifo di table limitpon di tableTable limitDi minimum an maximum bet dem allow. Di maximum a weh stop progression weh double up.Read di whole ting → mek wi drop it $400 down. It usually work, an den it nuh work.
Walk tru di system
Di stake a di fus numba plus di las one. A win cross off both. A loss write di stake at di end.
Stake an result deh inna unit a di base bet.
Di plan
Write 1 2 3 4 pon a card. Evry spin, stake di two end numba add up, pon redbet demRedEven-money bet pon di 18 red numba. Inna French: rouge.Read di whole ting →. A win cross off both numba; a loss add di stake pon di right-hand end. Di line clear wen nutten nuh lef, an dat net di original total, 10 unitmoney mattaUnitDi base stake weh a system or a playa work wid. Dem describe progression inna unit suh dem work at any table.Read di whole ting →, $50. A line only need one win fi evry two loss fi clear, cause evry win tek off two numba an evry loss add one. Red win 48.65% a di spin dem, an dat more dan di one-inna-tree weh it need, suh most line clear.
Line 1, spin 1–8
1 2 3 4 → stake 5 (1+4): Lose, line 1 2 3 4 5. Stake 6: Win, line 2 3 4. Stake 6: Lose, line 2 3 4 6. Stake 8: Win, line 3 4. Stake 7: Lose, line 3 4 7. Stake 10: Win, line 4. Stake 4: Lose, line 4 4. Stake 8: Win, clear. Eight spin, four win an four loss. Net +$50, exactly di target, an di stake neva go ova $50. It work like a likkle machine.

Line 2, spin 9–39
1 2 3 4 again. Eleven loss inna di fus twelve spin. Evry loss add a numba weh a two odda one add up, suh di line grow inna both length an size: afta twelve spin it did read 2 3 4 5 6 7 8 9 10 12 14 16 18 an di stake did deh pon $100. By spin 23 it did have 16 numba an di cycle did deh pon −$850. Win dem cross off di big end numba, an dat help: nine win inna di nex fifteen spin cut di line down to 12 14 16 18 an di cycle to −$250 by spin 38, an di stake touch di $200 limit pon di way. Den zeropon di wheelZeroDi one green pocket weh no even-money, dozen or column bet nuh cover; a weh di house edge come fram. Nex name: single zero, 0.Read di whole ting →: di $150 stake lose, di line read 12 14 16 18 30, an di nex stake, $210, did deh ova di limit. Di cycle did deh pon −$400. Wi stop. Di line woulda clear fi +$50 eventually, if “eventually” did reach bifo di limit an bifo di bankrollmoney mattaBankrollAll di money yuh set aside fi play. Fi manage yuh bankroll mean yuh decide ow much a it yuh a go risk pon evry bet an evry session.Read di whole ting → done.
- p10 −$500
- p25 −$500
- median −$500
- p75 −$500
- p90 +$1,360
Di account
Total bet $3,770 ova 39 spin gainst $195 flat. Expected lossmathsExpected lossExpected value times all di money yuh bet; di average amount yuh lose ova a session or a period (di loss yuh fi expec pon average).Read di whole ting → pon $3,770 a $102; actual −$350, bout a third a a standard deviationmathsStandard deviationDi square root a variance; ow far a result usually deh fram di expected value.Read di whole ting → below, cause at dem stake yah one standard deviation a bout $700. A Labouchèrestrategy demLabouchèreCancellation system: write a line a numba, bet di sum a di two end, cross dem off afta a win, add di stake weh yuh lose afta a loss.Read di whole ting → line weh run weh a di heavies turnovermoney mattaTurnoverAll di money yuh bet ova a session or a period, countin di winnins yuh bet again (all di money yuh bet, roun afta roun). Nex name: handle, action.Read di whole ting → a any common system, cause evry loss raise di stake by di size a di loss an di line nuh have nuh ceilin but di table own.
Wah di session show
Labouchère have a rare ting: it usually work, an dat a why it did a ting fi chat bout at Victorian dinna, an why it still sell. Di line dem weh clear small an come often; di line weh run weh big an rare, an it nuh have nuh end to ow big it can get. Di expected loss pon evry dolla a −2.70% inna both half, an di only ting di system do a decide which half yuh deh inna pon a given night.
Question dem
Yes: a line like 1 2 3 4 5 6 8 9 can split inna two line wid di same total, an dat bring down di stake an double di numba a line fi clear. It change di shape, nuh di price.
A line a 1 1 a a two-unit target wid a $10 stake; it clear quick an run weh jus as easy. Di length only set di target.
Yes, unda a dozen name. Henry Labouchère mek it popular inna di 1870s; a nuh im invent it.
Sumting fi laugh

It usually clear. Di odda one dem need more paper.
Source dem
- Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling.
- Schwartz, D. G. Roll the Bones: The History of Gambling.